Water spraying intelligent control device for data center air conditioner outdoor unit

Abstract

The utility model discloses an intelligent water spray control device for a data center air conditioner outdoor unit, which comprises a temperature control module, a pipeline pressure control module, a relay group and an electromagnetic valve, and is characterized in that the temperature control module is used for controlling the opening and closing of the electromagnetic valve through the relay group according to the environment temperature; the pipeline pressure control module is used for controlling opening and closing of the electromagnetic valve through the relay set according to the pressure value of the air conditioner pipeline. By arranging the temperature control module and the pipeline pressure control module and setting the opening and closing values of the temperature control module and the pipeline pressure control module, the water spraying device can be automatically opened, the work of opening and closing the water spraying device is reduced, the working efficiency of operation and maintenance personnel is improved, and waste of water resources can be reduced; in addition, the electromagnetic valve corresponding to each outdoor unit is controlled through the pipeline pressure control module, waste of water resources is reduced, and damage to fins of the outdoor units is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water spray control, in particular to a water spray intelligent control device for an outdoor unit of an air conditioner in a data center. Background Art

[0002] At present, most of the data center air conditioners on the market are equipped with water spray devices for outdoor units to cool down the outdoor units and improve the heat dissipation efficiency. When the ambient temperature is high in summer, the water spray device will be turned on to cool down the outdoor units of the air conditioners. However, the existing water spray devices require the operation and maintenance personnel of the computer room to manually open and close them. If the water spray devices are not opened and closed in time, it will cause waste of water or reduce the cooling efficiency of the air conditioner. In addition, once the water spray device is turned on, tap water will spray to all outdoor units. However, due to the business needs of the computer room, not all air conditioners corresponding to the outdoor units are turned on. Spraying the outdoor units that have not turned on the air conditioners will cause a lot of water resources. Waste, and long-term water spraying will also cause irreversible damage to the fins of the air conditioner outdoor unit. Utility Model Content

[0003] In view of this, the utility model proposes a water spray intelligent control device for the air conditioner outdoor unit of a data center, which can solve the defects of the prior art of wasting water resources, reducing the air conditioning refrigeration efficiency and causing irreversible damage to the fins of the air conditioner outdoor unit.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A water spray intelligent control device for an air conditioner outdoor unit of a data center comprises a temperature control module, a pipeline pressure control module, a relay group and a solenoid valve. The temperature control module is used to control the opening and closing of the solenoid valve according to the ambient temperature and through the relay group. The pipeline pressure control module is used to control the opening and closing of the solenoid valve according to the pressure value of the air conditioning pipeline and through the relay group. The temperature control module and the pipeline pressure control module are electrically connected to the solenoid valve through the relay group respectively.

[0006] As a further optional scheme of the water spray intelligent control device for the air-conditioning outdoor unit of the data center, the relay group includes a first intermediate relay, a second intermediate relay, a third intermediate relay, a fourth intermediate relay and a fifth intermediate relay, the temperature control module is electrically connected to the solenoid valve through the second intermediate relay, the third intermediate relay and the fourth intermediate relay, and the pipeline pressure control module is electrically connected to the solenoid valve through the first intermediate relay, the fourth intermediate relay and the fifth intermediate relay.

[0007] As a further optional scheme of the water spray intelligent control device for the air conditioner outdoor unit of the data center, the first intermediate relay includes a first coil and a first normally open contact, the second intermediate relay includes a second coil and a second normally open contact, the third intermediate relay includes a third coil and a first normally closed contact, the fourth intermediate relay includes a fourth coil, a third normally open contact and a fourth normally open contact, the fifth intermediate relay includes a fifth coil and a second normally closed contact, the temperature control module adopts a temperature control switch, and the pipeline pressure control module adopts a pressure switch, one end of the pressure switch is respectively connected to the live wire, one end of the temperature control switch, one end of the first normally closed contact and one end of the fourth normally open contact, and the other end of the pressure switch is respectively connected to the first The first coil and the fifth coil are connected at one end, the other ends of the first coil and the fifth coil are connected to the neutral line, the other end of the temperature control switch is respectively connected to one end of the second coil and the third coil, the other end of the second coil and the third coil is connected to the neutral line, the other end of the first normally closed contact is connected to one end of the second normally closed contact, the other end of the second normally closed contact is respectively connected to one end of the first normally open contact, the second normally open contact and the third normally open contact, the other ends of the first normally open contact, the second normally open contact and the third normally open contact form a common end connected to one end of the fourth coil, the other end of the fourth coil is connected to the neutral line, the other end of the fourth normally open contact is connected to one end of the solenoid valve, and the other end of the solenoid valve is connected to the neutral line.

[0008] The beneficial effects of the utility model are as follows: by setting a temperature control module and a pipeline pressure control module, and setting the opening and closing values ​​of the temperature control module and the pipeline pressure control module, the water spray device can be automatically turned on, reducing the work of turning on and off the water spray, improving the work efficiency of operation and maintenance personnel, and reducing the waste of water resources, avoiding the decrease in air-conditioning refrigeration efficiency caused by failure to turn on the water spray device in time. In addition, the solenoid valve corresponding to each outdoor unit is controlled by the pipeline pressure control module, reducing the waste of water resources and reducing damage to the fins of the outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 The utility model is a circuit diagram of a water spray intelligent control device for an outdoor unit of an air conditioner in a data center. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] refer to Figure 1 A water spray intelligent control device for an air conditioner outdoor unit of a data center includes a temperature control module, a pipeline pressure control module, a relay group and a solenoid valve. The temperature control module is used to control the opening and closing of the solenoid valve according to the ambient temperature through the relay group. The pipeline pressure control module is used to control the opening and closing of the solenoid valve according to the pressure value of the air-conditioning pipeline through the relay group. The temperature control module and the pipeline pressure control module are electrically connected to the solenoid valve through the relay group respectively.

[0013] In this embodiment, by setting a temperature control module and a pipeline pressure control module, and setting the opening and closing values ​​of the temperature control module and the pipeline pressure control module, the water spray device can be automatically turned on, reducing the work of turning the water spray on and off, improving the work efficiency of the operation and maintenance personnel, and reducing the waste of water resources. It can also avoid the decrease in air-conditioning refrigeration efficiency caused by not turning on the water spray device in time. In addition, the solenoid valve corresponding to each outdoor unit is controlled by the pipeline pressure control module, reducing the waste of water resources and reducing damage to the fins of the outdoor unit.

[0014] Preferably, the relay group includes a first intermediate relay, a second intermediate relay, a third intermediate relay, a fourth intermediate relay and a fifth intermediate relay, the temperature control module is electrically connected to the solenoid valve through the second intermediate relay, the third intermediate relay and the fourth intermediate relay, and the pipeline pressure control module is electrically connected to the solenoid valve through the first intermediate relay, the fourth intermediate relay and the fifth intermediate relay.

[0015] Preferably, the first intermediate relay includes a first coil and a first normally open contact, the second intermediate relay includes a second coil and a second normally open contact, the third intermediate relay includes a third coil and a first normally closed contact, the fourth intermediate relay includes a fourth coil, a third normally open contact and a fourth normally open contact, the fifth intermediate relay includes a fifth coil and a second normally closed contact, the temperature control module adopts a temperature control switch, the pipeline pressure control module adopts a pressure switch, one end of the pressure switch is respectively connected to the live wire, one end of the temperature control switch, one end of the first normally closed contact and one end of the fourth normally open contact, the other end of the pressure switch is respectively connected to one end of the first coil and one end of the fifth coil, the The other ends of the first coil and the fifth coil are connected to the neutral line, the other ends of the temperature control switch are respectively connected to one ends of the second coil and the third coil, the other ends of the second coil and the third coil are connected to the neutral line, the other end of the first normally closed contact is connected to one end of the second normally closed contact, the other end of the second normally closed contact is respectively connected to one ends of the first normally open contact, the second normally open contact and the third normally open contact, the other ends of the first normally open contact, the second normally open contact and the third normally open contact form a common end connected to one end of the fourth coil, the other end of the fourth coil is connected to the neutral line, the other end of the fourth normally open contact is connected to one end of the solenoid valve, and the other end of the solenoid valve is connected to the neutral line.

[0016] In this embodiment, the pressure switch YN includes three terminals, namely, com, no, and nc. The pressure switch YN is installed on the copper tube of the air conditioner to measure the pressure value in the copper tube of the air conditioner. The temperature control switch WK includes four terminals, namely, 11, 12, 23, and 24. The temperature control switch WK is installed next to the outdoor unit of the air conditioner to measure the ambient temperature at the outdoor unit. The first intermediate relay includes a first coil KA and a first normally open contact KA1. The second intermediate relay includes a second coil KB and a second normally open contact KB1. The third intermediate relay includes a third coil KC and a first normally closed contact KC1. The fourth intermediate relay includes a fourth coil KD, a third normally open contact KD1, and a fourth normally open contact KD2. The fifth intermediate relay includes a fifth coil KE and a second normally closed contact KE1. The solenoid valve YV is installed at the water spray port of the outdoor unit of the air conditioner. When the set conditions are met, the spray port is opened to cool down the outdoor unit of the air conditioner.

[0017] Connection relationship: the com terminal of the pressure switch YN is connected to the power supply L and the 11 and 23 terminals of the temperature control switch WK and one end of the first normally closed contact KC1 and one end of the fourth normally open contact KD2 respectively; the no terminal of the pressure switch YN is connected to one end of the first coil KA; the nc terminal of the pressure switch YN is connected to one end of the fifth coil KE, the 12 terminal of the temperature control switch WK is connected to one end of the third coil KC; the 24 terminal of the temperature control switch WK is connected to one end of the second coil KB; the other end of the first normally closed contact KC1 is connected to one end of the second normally closed contact KE1; the second normally closed contact KE1 is connected to one end of the second normally closed contact KE1. The other end is connected to one end of the first normally open contact KA1, one end of the third normally open contact KD1, and one end of the second normally open contact KB1 respectively; the other end of the first normally open contact KA1, the other end of the third normally open contact KD1, and the other end of the second normally open contact KB1 are respectively connected to one end of the fourth coil KD; the other end of the fourth normally open contact KD2 is connected to one end of the solenoid valve YV; the other end of the first coil KA is respectively connected to the power supply N, the other end of the second coil KB, the other end of the third coil KC, the other end of the fourth coil KD, the other end of the fifth coil KE, and the other end of the solenoid valve YV.

[0018] This practical water sprinkler intelligent control device can be used in all-weather scenarios throughout the year; it includes the following four scenarios (manually setting the pressure switch opening value a for the first time, manually setting the temperature control switch opening value b and closing value c):

[0019] Scenario 1: When the temperature is suitable and the ambient temperature has not reached the opening value b, the operating pressure of the air conditioner outdoor unit is low and has not reached the opening value a, at this time, the pressure switch YN has no signal output, the temperature control switch WK has no signal output, the solenoid valve YV has no input signal, the solenoid valve is closed and the water spray is closed;

[0020] Scenario 2: When the ambient temperature is high, the ambient temperature exceeds the pressure switch opening value b, and the operating pressure of the air conditioner outdoor unit is low and does not reach the opening value a. At this time, the pressure switch YN has no signal output, the temperature control switch WK has a signal output, the solenoid valve YV has no input signal, and the solenoid valve is closed and the water spray is closed;

[0021] Scenario 3: When the ambient temperature is suitable and has not reached the opening value b, the operating pressure of the air conditioner outdoor unit is relatively high and reaches the opening value a. At this time, the pressure switch YN has a signal output, the temperature control switch WK has no signal output, the solenoid valve YV has no input signal, and the solenoid valve is closed and the water spray is closed;

[0022] Scenario 4: When the ambient temperature reaches the opening value b when the temperature is high, the operating pressure of the air conditioner outdoor unit is high and reaches the opening value a. At this time, the pressure switch YN has a signal output, the temperature control switch WK has a signal output, the solenoid valve YV has an input signal, and the solenoid valve opens the water spray. When the ambient temperature reaches the closing value c, or the pressure value in the air conditioner copper tube is less than the opening value a, the solenoid valve closes.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water spray intelligent control device for the outdoor unit of the air conditioner in a data center, characterized in that: It includes a temperature control module, a pipeline pressure control module, a relay group and a solenoid valve. The temperature control module is used to control the opening and closing of the solenoid valve according to the ambient temperature through the relay group. The pipeline pressure control module is used to control the opening and closing of the solenoid valve according to the pressure value of the air-conditioning pipeline through the relay group. The temperature control module and the pipeline pressure control module are electrically connected to the solenoid valve through the relay group respectively.

2. According to claim 1, a water spray intelligent control device for an air conditioner outdoor unit of a data center is characterized in that: The relay group includes a first intermediate relay, a second intermediate relay, a third intermediate relay, a fourth intermediate relay and a fifth intermediate relay. The temperature control module is electrically connected to the solenoid valve through the second intermediate relay, the third intermediate relay and the fourth intermediate relay. The pipeline pressure control module is electrically connected to the solenoid valve through the first intermediate relay, the fourth intermediate relay and the fifth intermediate relay.

3. The water spray intelligent control device for the outdoor unit of the air conditioner in the data center according to claim 2 is characterized in that: The first intermediate relay includes a first coil and a first normally open contact, the second intermediate relay includes a second coil and a second normally open contact, the third intermediate relay includes a third coil and a first normally closed contact, the fourth intermediate relay includes a fourth coil, a third normally open contact and a fourth normally open contact, the fifth intermediate relay includes a fifth coil and a second normally closed contact, the temperature control module adopts a temperature control switch, the pipeline pressure control module adopts a pressure switch, one end of the pressure switch is respectively connected to the live wire, one end of the temperature control switch, one end of the first normally closed contact and one end of the fourth normally open contact, the other end of the pressure switch is respectively connected to one end of the first coil and one end of the fifth coil, the first The other ends of the coil and the fifth coil are connected to the neutral line, the other ends of the temperature control switch are respectively connected to one ends of the second coil and the third coil, the other ends of the second coil and the third coil are connected to the neutral line, the other end of the first normally closed contact is connected to one end of the second normally closed contact, the other end of the second normally closed contact is respectively connected to one ends of the first normally open contact, the second normally open contact and the third normally open contact, the other ends of the first normally open contact, the second normally open contact and the third normally open contact form a common end connected to one end of the fourth coil, the other end of the fourth coil is connected to the neutral line, the other end of the fourth normally open contact is connected to one end of the solenoid valve, and the other end of the solenoid valve is connected to the neutral line.

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